<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="../vue.js"></script>
  </head>

  <body>
    <div id="app">
      <h1>{{msg}}</h1>
      姓：<input type="text" v-model="firstName" />
      名：<input type="text" v-model="lastName" />
      <p>全名：{{firstName+'-'+lastName}}</p>
    </div>
    <script>
      Vue.config.productionTip = false;
      const vm = new Vue({
        el: "#app",
        data() {
          return {
            msg: "hello vue!",
            firstName: "",
            lastName: "",
          };
        },
        methods: {},
      });
    </script>
  </body>
</html>
